Re: [PATCH AUTOSEL 6.3 08/59] bpf, mips: Implement DADDI workarounds for JIT

[Sasha Levin]

On Fri, May 05, 2023 at 01:04:14PM +0100, Jiaxun Yang wrote:
> > 2023年5月4日 20:40，Sasha Levin <sashal@xxxxxxxxxx> 写道：
> >
> > From: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> >
> > [ Upstream commit bbefef2f07080cd502a93cb1c529e1c8a6c4ac8e ]
> >
> > For DADDI errata we just workaround by disable immediate operation
> > for BPF_ADD / BPF_SUB to avoid generation of DADDIU.
> >
> > All other use cases in JIT won't cause overflow thus they are all safe.
> >
> > Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> > Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
> > Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
> > Acked-by: Johan Almbladh <johan.almbladh@xxxxxxxxxxxxxxxxx>
> > Link: https://lore.kernel.org/bpf/20230228113305.83751-2-jiaxun.yang@xxxxxxxxxxx
> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
>
> Hi Sasha,
>
> I think this patch should count as a functional improvement instead of regression fix.
>
> Please drop it from stable queue.

Dropped, thanks!

--
Thanks,
Sasha